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一、前言随着连续铸钢技术的迅速发展,多炉连铸工艺日趋完善,快速上注新工艺广泛采用,给盛钢桶钢流控制系统提出了更高的要求。武钢二炼钢厂为生产优质硅钢,模铸生产需用φ90mm和φ80mm水口进行快速上注,而连铸生产需用φ70mm水口进行多炉连浇。为此于1981年从日本黑崎窑业公司引进四套YPN80—180L型滑动水口装置,安装在70t盛钢桶上,1982年1月上旬相继投入生产试用。实践表明,此装置既可满足快速上注(150～170kg/s)的要求,又能适应多炉连铸的需要。为减少外汇开支,立足于国内仿制,根
I. INTRODUCTION With the rapid development of continuous casting technology, multi-furnace continuous casting process is becoming more and more perfect. The rapid filling of new process is widely adopted, which puts forward higher requirements for steel flow control system. In order to produce high-quality silicon steel, WISCO No.2 steelmaking plant needs quick injection of φ90mm and φ80mm nozzles for continuous casting, while continuous casting requires φ70mm nozzles for continuous furnace. To this end in 1981 from Japan Kurosaki kiln company to introduce four sets of YPN80-180L-type sliding nozzle installation, installed in 70t ladle, in early January 1982 have been put into production trial. Practice shows that this device can meet the requirements of rapid betting (150 ~ 170kg / s), but also to meet the needs of multi-furnace continuous casting. To reduce foreign exchange expenses, based on the domestic generic, root